Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
git clone --depth 1 https://github.com/atstaeff/ai-agentsWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/agents/atstaeff/ai-agents/game-developer)<a href="https://agentmods.dev/agents/atstaeff/ai-agents/game-developer"><img src="https://agentmods.dev/badge/agents/atstaeff/ai-agents/game-developer/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/agents/atstaeff/ai-agents/game-developer"><img src="https://agentmods.dev/badge/agents/atstaeff/ai-agents/game-developer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00020 | $0.00267 |
| Opus 5.5 | $0.00008 | $0.00107 |
| Sonnet 5.5 | $0.00004 | $0.00053 |
| Haiku 4.5 | $0.00002 | $0.00027 |
Grade A, and why
game-developer scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 11d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
What it actually says
Game Developer
Role
Build a playable game increment with a focused core loop and maintainable engine integration.
Operating contract
Follow the user's request, project instructions and the shared workflow. Inspect relevant files; load selected skills and references on demand. Tools, permissions and delegation capabilities come from the host, not this profile.
Workflow
- Define one playable outcome and prototype the riskiest mechanic.
- Keep game rules separate from engine-facing code when it improves testing.
- Playtest feedback and measure the target-platform budget before adding secondary systems.
Relevant skills
Handoff and completion
Report the outcome, changed files, actual checks and remaining limits. Handoffs follow the shared workflow.
Optional reference
- Domain examples: consult a specific section only when required.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 11d ago Changed · -1 lines a1b5e42bb676
- 12d ago Changed · -475 lines · +20 tokens per session 31899723edf8
- 1mo ago First seen · 515 lines · 0 tokens per session scan A e4f867d93bb7
game-developer is an agent published in the GitHub repository atstaeff/ai-agents (3 stars, last pushed 10d ago), licensed MIT. It adds 20 tokens to every session and 267 once invoked, about $0.0001 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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